Suspension device



2 Sheets-Sheet 1.

(No Model.)

0. J. PETERSEN.

SUSPENSION DEVICE.

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G. J. PETERSEN.

SUSPENSION DEVICE.

No. 335,478. Patented Feb. 2, 1886.

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UNITED STATES PATENT QEFTCE.

CHARLES J. PETERSEN, OF PORT CHESTER, NE\V YORK.

SUSPENSION DEVICE.

SPECIFICATION forming part of Letters Patent No. 335,478, datedPebruary'Z, 1885.

Application filed September 1 1866. Serial No.177,508. (No model.)

To all whom, it may concern:

Be it known that I, CHARLES J. PETERSEN, a citizen of the United States,residing at Port Chester, in the county of \Vestchester and State of NewYork, have invented new and useful Improvementsin Suspension Devioes,ofwhich the following is a specification.

This invention has for its object to provide novel means for suspendingand raising and lowering a lamp or other article.

To such end my invention consists in the combination of deviceshereinafter described and claimed, reference being made to theaccompanying drawings, illustrating my invention, in which Figure 1 is asection of my device on the line w as, Fig. 3, carrying a lamp. Fig. 2is a similar view showing the operation of the clearinglcver. Fig. 3 isa section on the line y y, Fig. 1. Fig. 4 is a side view. Figs. 5 and 6are details of the clearing-lever; and Fig. 7 is a detail view of thelever, showing a modification, in which the lever is pivoted at or nearone end.

Similar letters indicate corresponding parts.

In the drawings, the letter A designates the main frame, carrying thebrakeshoe B, and provided with an eye, 0, by which it may be attached tothe ceiling.

D is the swinging frame, suspended from pivots a, projecting from themain frame, and carrying the spindle b. On this spindle revolves a drum,E, which contains a coiled spring, F, the inner end of which is securedto the spindle I), while the outer end is fast ened to the drum E, sothat when the latter is turned in the direction of the arrow marked onit in Fig. 1 the spring is wound up. In the periphery of the drum E inthe example shown are three circular grooves, 0 d 6, each of which isintended to receive one of the suspension-cords G H I, the inner ends ofwhich are fastened to the drum E. To regulate the tension of the coiledspring F, a wrench, J, is secured to one end of the spindle b, whichprojects through an opening, f, in the main frame A. Vhen' the desiredamount of tension has been attained, the

wrench J is held in position by the link {1 and the hook it, or by anyother suitable means.

In the outer ends of the swinging frame D are mounted two guide-rollers,i i, one on each side of the drum E. The suspension-cords pass from thedrum E over these guide-rollers to guide-rollers j, mounted closetogether at the lower end of the main frame A, from these toguide-rollers it 'It, mounted in the upper end of the earrying-frame L,and are then securely fastened to the clearing-lever K, which is pivotedat a in the carrying-frame L. One side of this lever is connected by alink or other device with the auxiliary lever llI, pivoted to the lowerend of the carrying-frame at Z, while the other end of theclearing-lever is subject to the action of the spring m, secured to thesaid frame.

The drawings show the suspension-cords coiled up, and the carrying-framein its upper position near the suspension device proper. To draw itdown,the auxiliary lever M is first drawn downward, acting on theclearing-lever and turning the same on its pivots a, (see Fig. 2,) whichin the example sliown are near its center, and causing saidclearing-lever to pull the suspension-cord H, which passes over theguide-roller '1: in the swinging frame D, thereby turning the latter onits pivots a. in the direction of arrow 2, Fig. 1, and disengaging thedrum E from the brakeshoe B. When the above operation has been effected,the lever M will rest against the ring N in the bottom of theearrying-frame, and by continuing" the downward pressure the carryingframe may be drawn down until the lever M is released, when the swingingframe will swing back to its normal position, and the drum will againengage the brake-shoe, which will pre vent the further unwinding of thesuspensioncords and stop the downward motion of the carrying-frame.

When it is desired to raise the carrying frame, the drum is disengagedfrom the brake shoein the manner above described, and while thecarrying-frame is slightly lifted the action of the coiled spring in thedrum will cause the same to rotate and wind up the suspension-cordsuntil the lever M is released, when the brake-shoe will again act andhold the whole apparatus stationary.

In the modification shown in Fig. 7 the pivot n of the clearing-leverKis placed at or near one end thereof, and one of the suspension-cords isconnected with the lever near its pivot or fulcrum, while the other cordis connected with the lever farther from the pivot or fulcrum, in suchmanner that the strain on one suspension-cord will be greater than thestrain on the other when the free end of the lever is drawn downward.

By the construction shown in Fig. 7 I may dispense with the use of thespring at. It will be evident that only two suspension-cords arenecessary to permit the operation of the devices.

What I claim as new, and desire to secure by Letters Patent, is

1. The combination of the main frame provided with guides and anattached brake-shoe, a swinging-frame pivoted to the main frame andprovided with guides, a rotating springdrum carried by said swingingframe, a frame for carrying the object to be suspended, a lever, K,pivoted to said carrying-frame, and suspensioncords passing around saiddrum and connected to the lever K at different points, substantially asdescribed.

, 2. The combination of the main frame provided with guides and anattached brake-shoe, a swinging frame pivoted to the main frame andprovided with guides, a spindle located below the pivoted attachment ofthe swinging frame, a spring-drum mounted on said spindle, a frame forcarrying the object to be suspended, a lever pivoted to thecarrying-frame, suspension-cords passing around the drum and connectedto the pivoted lever at different points, and an auxiliary-lever mountedon the carrying-frame and connected with the pivoted lever on thelatter, substantially as described.

3. The combination ofa main frame provided with guides and an attachedbrake-shoe, a swinging frame pivoted to the main frame and provided withguides, a spindle located in said swinging frame, a carrying-frame, aclearing-lever pivoted to the carrying-frame, and suspension cordspassing around said drum and connected to said clearing-lever atdifferent points, substantially as described.

4:. The combination of-a main frame having an attached brake-shoe, aswinging pivoted frame, a sprmg'drum journaled in the swinging frame, acarrying-frame, guides for the suspension-cords, suspension-cords pass-I ing around the drum and engaging said guides, and a clearing-levermounted on the carryingframe and connected at different points with thesuspension cords, substantially as described.

5. The combination of a main frame provided with guides and an attachedbrake-shoe, a swinging pivoted frame provided with guides, a spring-drumjournaled in the swinging frame, a carrying-frame, a lever pivoted at oradjacent to its center, a spring connecting one end of said lever withthe carryingframe, an auxiliary lever on the carryingframe connectedwith the other end of the pivoted lever, and suspension-cords passingaround the drum and connected with the pivoted lever at differentpoints, substantially as described.

6. The combination of the main frame provi ded with guides and anattached brake-shoe, a swinging frame pivoted to said main frame andprovided with guides and a spindle, a drum journaled on the spindle ofthe swinging frame and containing a spring, an adjustable wrenchengaging the spindle to adjust the tension of the spring, acarrying-frame, a lever pivoted thereon, and suspension-cords passingaround the drum and connected with said pivoted lever at differentpoints, substantially as described.

In testimony whereof I have hereunto set my hand and seal in thepresence of two subscribing witnesses.

CHARLES J. PETERSEN. n s] Witnesses:

A. FABER DU FAUR, Jr., E. F. KAs'rENHUBER.

